arm.c (arm_get_frame_offsets): Validate architecture supports LDRD/STRD before…

arm.c (arm_get_frame_offsets): Validate architecture supports LDRD/STRD before accepting the tuning preference.

	* arm.c (arm_get_frame_offsets): Validate architecture supports
	LDRD/STRD before accepting the tuning preference.
	(arm_expand_prologue): Likewise.
	(arm_expand_epilogue): Likewise.

From-SVN: r202702

gcc/ChangeLog

+2013-09-18  Richard Earnshaw  <rearnsha@arm.com>
+
+	* arm.c (arm_get_frame_offsets): Validate architecture supports
+	LDRD/STRD before accepting the tuning preference.
+	(arm_expand_prologue): Likewise.
+	(arm_expand_epilogue): Likewise.
+
 2013-09-18  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/58417

gcc/config/arm/arm.c

@@ -17969,7 +17969,8 @@ arm_get_frame_offsets (void)
           if (! any_sibcall_could_use_r3 ()
 	      && arm_size_return_regs () <= 12
 	      && (offsets->saved_regs_mask & (1 << 3)) == 0
-              && (TARGET_THUMB2 || !current_tune->prefer_ldrd_strd))
+              && (TARGET_THUMB2
+		  || !(TARGET_LDRD && current_tune->prefer_ldrd_strd)))
 	    {
 	      reg = 3;
 	    }
@@ -18394,7 +18395,8 @@ arm_expand_prologue (void)
 	    }
 	}
 
-      if (current_tune->prefer_ldrd_strd
+      if (TARGET_LDRD
+	  && current_tune->prefer_ldrd_strd
           && !optimize_function_for_size_p (cfun))
         {
           if (TARGET_THUMB2)
@@ -24663,7 +24665,8 @@ arm_expand_epilogue (bool really_return)
         }
       else
         {
-          if (current_tune->prefer_ldrd_strd
+          if (TARGET_LDRD
+	      && current_tune->prefer_ldrd_strd
               && !optimize_function_for_size_p (cfun))
             {
               if (TARGET_THUMB2)